diff --git a/Libs/CMS_CORE_Library.dll b/Libs/CMS_CORE_Library.dll
index c778d9ea..9ce6e716 100644
Binary files a/Libs/CMS_CORE_Library.dll and b/Libs/CMS_CORE_Library.dll differ
diff --git a/Step.Config/Config/softKeyConfig.xml b/Step.Config/Config/softKeyConfig.xml
index dee64311..86df8f62 100644
--- a/Step.Config/Config/softKeyConfig.xml
+++ b/Step.Config/Config/softKeyConfig.xml
@@ -3,6 +3,7 @@
   <softKey>
     <active>true</active>
     <category>1</category>
+    <operatorConfirmationNeeded>false</operatorConfirmationNeeded>
     <plcId>1</plcId>
     <localizedNames>
       <lang langKey="en">Test</lang>
@@ -12,6 +13,7 @@
   <group>
     <active>true</active>
     <category>1</category>
+    <operatorConfirmationNeeded>false</operatorConfirmationNeeded>
     <localizedNames>
       <lang langKey="en">Test</lang>
       <lang langKey="it">Ita</lang>
@@ -24,6 +26,7 @@
   <group>
     <active>false</active>
     <category>2</category>
+    <operatorConfirmationNeeded>false</operatorConfirmationNeeded>
     <localizedNames>
       <lang langKey="en">Test</lang>
       <lang langKey="it">Ita</lang>
@@ -36,6 +39,7 @@
   <group>
     <active>true</active>
     <category>2</category>
+    <operatorConfirmationNeeded>false</operatorConfirmationNeeded>
     <localizedNames>
       <lang langKey="en">Test</lang>
       <lang langKey="it">Ita</lang>
@@ -48,6 +52,7 @@
   <softKey>
     <active>true</active>
     <category>1</category>
+    <operatorConfirmationNeeded>true</operatorConfirmationNeeded>
     <plcId>1</plcId>
     <localizedNames>
       <lang langKey="en">Test</lang>
diff --git a/Step.Config/Config/softKeyConfigValidator.xsd b/Step.Config/Config/softKeyConfigValidator.xsd
index d6caca09..a50175d1 100644
--- a/Step.Config/Config/softKeyConfigValidator.xsd
+++ b/Step.Config/Config/softKeyConfigValidator.xsd
@@ -30,6 +30,7 @@
     <xs:all>
       <xs:element name="active" minOccurs="1" maxOccurs="1" type="xs:boolean"></xs:element>
       <xs:element name="category" type="xs:integer"></xs:element>
+      <xs:element name="operatorConfirmationNeeded" type="xs:boolean"></xs:element>
       <xs:element name="localizedNames">
         <xs:complexType>
           <xs:sequence>
@@ -61,6 +62,7 @@
     <xs:all>
       <xs:element name="active" minOccurs="1" maxOccurs="1" type="xs:boolean"></xs:element>
       <xs:element name="category" type="xs:integer"></xs:element>
+      <xs:element name="operatorConfirmationNeeded" type="xs:boolean"></xs:element>
       <xs:element name="localizedNames">
         <xs:complexType>
           <xs:sequence>
@@ -78,6 +80,7 @@
     <xs:all>
       <xs:element name="active" minOccurs="1" maxOccurs="1" type="xs:boolean"></xs:element>
       <xs:element name="category" type="xs:integer"></xs:element>
+      <xs:element name="operatorConfirmationNeeded" type="xs:boolean"></xs:element>
       <xs:element name="localizedNames">
         <xs:complexType>
           <xs:sequence>
diff --git a/Step.Config/ServerConfigController.cs b/Step.Config/ServerConfigController.cs
index 88c94071..508f2aae 100644
--- a/Step.Config/ServerConfigController.cs
+++ b/Step.Config/ServerConfigController.cs
@@ -78,6 +78,7 @@ namespace Step.Config
                 // Get SoftKeys
                 xmlConfigFile = GetXmlHandlerWithValidator(SOFT_KEY_CONFIG_SCHEMA_PATH, SOFT_KEY_CONFIG_PATH);
                 int id = 1;
+
                 SoftKeysConfig = xmlConfigFile
                      .Root
                      .Elements()
@@ -92,13 +93,14 @@ namespace Step.Config
                                y => y.Attribute("langKey").Value, y => y.Value
                             ),
 
-                         SubKeys = x.Element("plcKeys")?.Elements().Select(y => new SubKeysModel()
+                         SubKeys = x.Element("plcKeys")?.Elements().Select(y => new SubKeysModel() // Populate subkeys if exist
                          {
                              Id = id++,
                              PlcId = Convert.ToInt32(y.Attribute("plcId").Value),
                              Text = y.Value
                          }).ToList(),
-                         Type = GetSoftKeyType(x.Name.ToString())
+                         Type = GetSoftKeyType(x.Name.ToString()),
+                         OperatorConfirmationNeeded = Convert.ToBoolean(x.Element("operatorConfirmationNeeded").Value)
                      })
                      .ToList();
             }
@@ -128,7 +130,7 @@ namespace Step.Config
             switch (type)
             {
                 case "procedure": return SOFTKEY_TYPE.PROCEDURE;
-                case "group": return SOFTKEY_TYPE.MULTIPLE;
+                case "group": return SOFTKEY_TYPE.GROUP;
                 default: return SOFTKEY_TYPE.SOFTKEY;
             }
         }
diff --git a/Step.Model/ConfigModels/SoftKeyConfigModel.cs b/Step.Model/ConfigModels/SoftKeyConfigModel.cs
index 2b421290..54a5bf6a 100644
--- a/Step.Model/ConfigModels/SoftKeyConfigModel.cs
+++ b/Step.Model/ConfigModels/SoftKeyConfigModel.cs
@@ -9,6 +9,7 @@ namespace Step.Model.ConfigModels
         public Dictionary<string, string> LocalizedNames { get; set; }
         public int Category { get; set; }
         public bool IsActive { get; set; }
+        public bool OperatorConfirmationNeeded { get; set; }
         public List<SubKeysModel> SubKeys { get; set; }
         public int PlcId { get; set; }
         public SOFTKEY_TYPE Type { get; set; }
diff --git a/Step.Model/Constants.cs b/Step.Model/Constants.cs
index 5238ee32..574966db 100644
--- a/Step.Model/Constants.cs
+++ b/Step.Model/Constants.cs
@@ -24,7 +24,7 @@ namespace Step.Utils
         {
             SOFTKEY = 0,
             PROCEDURE = 1,
-            MULTIPLE = 2
+            GROUP = 2
         }
 
         public static class NC_VENDOR
diff --git a/Step.Model/DTOModels/DTOSoftKeyModel.cs b/Step.Model/DTOModels/DTOSoftKeyModel.cs
index a4dfaf19..c2e3072e 100644
--- a/Step.Model/DTOModels/DTOSoftKeyModel.cs
+++ b/Step.Model/DTOModels/DTOSoftKeyModel.cs
@@ -11,6 +11,7 @@ namespace Step.Model.DTOModels
     {
         public int Id { get; set; }
         public int Category { get; set; }
+        public bool OperatorConfirmationNeeded { get; set; }
         public SOFTKEY_TYPE Type { get; set; }
         public Dictionary<int, string> SubKeys { get; set; }
     }
@@ -21,5 +22,24 @@ namespace Step.Model.DTOModels
         public int Category { get; set; }
         public bool Active { get; set; }
         public bool Value { get; set; }
+
+        public override bool Equals(object obj)
+        {
+            var item = obj as DTOSoftKeyModel;
+
+            if (Id != item.Id)
+                return false;
+            if (Active != item.Active)
+                return false;
+            if (Value != item.Value)
+                return false;
+
+            return true;
+        }
+
+        public override int GetHashCode()
+        {
+            return base.GetHashCode();
+        }
     }
 }
diff --git a/Step.NC/NcHandler.cs b/Step.NC/NcHandler.cs
index 13eb971d..8b348e15 100644
--- a/Step.NC/NcHandler.cs
+++ b/Step.NC/NcHandler.cs
@@ -455,11 +455,15 @@ namespace Step.NC
 
             foreach (var softKey in SoftKeysConfig)
             {
-                if(softKey.Type == SOFTKEY_TYPE.MULTIPLE)
+                // Check type of the selected softkey
+                if(softKey.Type == SOFTKEY_TYPE.GROUP)
                 {
+                    // Foreach subkey create a softkey
                     foreach (var subkey in softKey.SubKeys)
                     {
+                        // Find plc value
                         var plcSoftKey = plcSoftKeys.Find(x => x.Id == subkey.PlcId);
+                        // Set data
                         softKeys.Add(new DTOSoftKeyModel()
                         {
                             Id = subkey.Id,
@@ -470,7 +474,8 @@ namespace Step.NC
                     }
                 }
                 else
-                {
+                {                        
+                    // Find plc value
                     var plcSoftKey = plcSoftKeys.Find(x => x.Id == softKey.PlcId);
                     softKeys.Add(new DTOSoftKeyModel()
                     {
@@ -485,6 +490,14 @@ namespace Step.NC
             return cmsError;
         }
 
+        public CmsError PutSoftKeyValue(uint id)
+        {
+            // Write softkey pression to plc
+            CmsError cmsError = numericalControl.PLC_WSoftKey(id);
+            
+            return cmsError;
+        }
+
         public CmsError RefreshAllAlarms()
         {
             return new CmsError(0, "");
diff --git a/Step.Tasks/ThreadsFunctions.cs b/Step.Tasks/ThreadsFunctions.cs
index ce34619a..0e8e9c54 100644
--- a/Step.Tasks/ThreadsFunctions.cs
+++ b/Step.Tasks/ThreadsFunctions.cs
@@ -261,7 +261,7 @@ public static class ThreadsFunctions
 
                 if (ncHandler.numericalControl.NC_IsConnected())
                 {
-                    // Get Data from database and PLC
+                    // Get Data from config and PLC
                     libraryError = ncHandler.GetSoftKeys(out List<DTOSoftKeyModel> softKeys);
                     if (libraryError.errorCode != 0)
                         ManageLibraryError(libraryError);
diff --git a/Step/Controllers/SignalR/NcHub.cs b/Step/Controllers/SignalR/NcHub.cs
index d6fc1d29..f68fdb6c 100644
--- a/Step/Controllers/SignalR/NcHub.cs
+++ b/Step/Controllers/SignalR/NcHub.cs
@@ -83,25 +83,33 @@ namespace Step.Controllers.SignalR
 
         public void UserSoftKeyClicked(int id)
         {
-            foreach (var softKey in SoftKeysConfig)
+            using (NcHandler ncHandler = new NcHandler())
             {
-                if(softKey.Type == SOFTKEY_TYPE.MULTIPLE)
+                ncHandler.Connect();
+                foreach (var softKey in SoftKeysConfig)
                 {
-                    foreach (var subkey in softKey.SubKeys)
+                    // Check softKey type
+                    if (softKey.Type == SOFTKEY_TYPE.GROUP)
                     {
-                        if(subkey.Id == id)
+                        // Find in the subkeys
+                        foreach (var subkey in softKey.SubKeys)
                         {
-                            // write
-                            break;
+                            if (subkey.Id == id)
+                            {
+                                // Write click button
+                                ncHandler.PutSoftKeyValue((uint)softKey.PlcId);
+                                break;
+                            }
                         }
                     }
-                }
-                else
-                {
-                    if(softKey.Id == id)
+                    else
                     {
-                        // write
-                        break;
+                        if (softKey.Id == id)
+                        {
+                            // Write click button 
+                            ncHandler.PutSoftKeyValue((uint)softKey.PlcId);
+                            break;
+                        }
                     }
                 }
             }
diff --git a/Step/Controllers/WebApi/ConfigurationController.cs b/Step/Controllers/WebApi/ConfigurationController.cs
index 81432aba..fdeffa2a 100644
--- a/Step/Controllers/WebApi/ConfigurationController.cs
+++ b/Step/Controllers/WebApi/ConfigurationController.cs
@@ -57,7 +57,7 @@ namespace Step.Controllers.WebApi
 
                 // Create subkeys dictionary for group
                 Dictionary<int, string> tmpSubKey = new Dictionary<int, string>();
-                if (softkey.Type == SOFTKEY_TYPE.MULTIPLE && softkey.SubKeys != null)
+                if (softkey.Type == SOFTKEY_TYPE.GROUP && softkey.SubKeys != null)
                 {
                     tmpSubKey = new Dictionary<int, string>();
                     foreach (var subkey in softkey.SubKeys)
@@ -70,6 +70,7 @@ namespace Step.Controllers.WebApi
                 {
                     Id = softkey.Id,
                     Category = softkey.Category,
+                    OperatorConfirmationNeeded = softkey.OperatorConfirmationNeeded,
                     Type = softkey.Type,
                     SubKeys = tmpSubKey
                 });
diff --git a/Step/Listeners/SignalR/SignalRListener.cs b/Step/Listeners/SignalR/SignalRListener.cs
index 32852b6a..01506873 100644
--- a/Step/Listeners/SignalR/SignalRListener.cs
+++ b/Step/Listeners/SignalR/SignalRListener.cs
@@ -17,6 +17,8 @@ namespace Step.Listeners.SignalR
         private static List<DTOExpiredMaintenanceModel> LastExpiredMaintenances = new List<DTOExpiredMaintenanceModel>();
         private static DTOPowerOnDataModel LastPowerOnData = new DTOPowerOnDataModel();
         private static DTOProcessDataModel LastProcessesData = new DTOProcessDataModel();
+        private static List<DTOSoftKeyModel> LastSoftKeysData = new List<DTOSoftKeyModel>();
+
         private static bool LastIsNcConnected = false;
 
         public static void SendAlarmsToClient(DTOAlarmsModel newAlarmsData)
@@ -116,7 +118,15 @@ namespace Step.Listeners.SignalR
 
         public static void SendSoftKeysData(object softKeys)
         {
+            var context = GlobalHost.ConnectionManager.GetHubContext<NcHub>();
+            List<DTOSoftKeyModel> newData = softKeys as List<DTOSoftKeyModel>;
 
+            if (newData.Count != LastSoftKeysData.Count || !LastSoftKeysData.All(newData.Contains))
+            {
+                LastSoftKeysData = newData;
+                // Send data to clients
+                context.Clients.Group("ncData").softKeys(softKeys);
+            }
         }
 
         private volatile static object _broadcastlock = new Object();